reorganize push 2 code and logic to better handle device arrival after program startup
Note: we do not handle device departure correctly yet, mostly because the shadow (pad) port has a retained reference somewhere
This commit is contained in:
parent
8cff66c7e0
commit
1b830f2604
@ -71,7 +71,6 @@ Push2Canvas::vblank ()
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/* re-render dirty areas, if any */
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if (expose ()) {
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DEBUG_TRACE (DEBUG::Push2, "re-blit to device frame buffer\n");
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/* something rendered, update device_frame_buffer */
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blit_to_device_frame_buffer ();
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@ -76,6 +76,7 @@ Push2::Push2 (ARDOUR::Session& s)
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: ControlProtocol (s, string (X_("Ableton Push 2")))
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, AbstractUI<Push2Request> (name())
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, handle (0)
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, in_use (false)
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, _modifier_state (None)
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, splash_start (0)
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, _current_layout (0)
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@ -93,6 +94,9 @@ Push2::Push2 (ARDOUR::Session& s)
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, contrast_color (LED::Green)
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, in_range_select (false)
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{
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/* we're going to need this */
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libusb_init (NULL);
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build_maps ();
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build_color_map ();
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@ -101,17 +105,21 @@ Push2::Push2 (ARDOUR::Session& s)
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/* master cannot be removed, so no need to connect to going-away signal */
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master = session->master_out ();
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if (open ()) {
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throw failed_constructor ();
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}
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ControlProtocol::StripableSelectionChanged.connect (selection_connection, MISSING_INVALIDATOR, boost::bind (&Push2::stripable_selection_change, this, _1), this);
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/* catch current selection, if any */
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{
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StripableNotificationListPtr sp (new StripableNotificationList (ControlProtocol::last_selected()));
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stripable_selection_change (sp);
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}
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/* allocate graphics layouts, even though we're not using them yet */
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_canvas = new Push2Canvas (*this, 960, 160);
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mix_layout = new MixLayout (*this, *session, "globalmix");
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scale_layout = new ScaleLayout (*this, *session, "scale");
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track_mix_layout = new TrackMixLayout (*this, *session, "trackmix");
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splash_layout = new SplashLayout (*this, *session, "splash");
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run_event_loop ();
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/* Ports exist for the life of this instance */
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ports_acquire ();
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/* catch arrival and departure of Push2 itself */
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ARDOUR::AudioEngine::instance()->PortRegisteredOrUnregistered.connect (port_reg_connection, MISSING_INVALIDATOR, boost::bind (&Push2::port_registration_handler, this), this);
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@ -119,83 +127,103 @@ Push2::Push2 (ARDOUR::Session& s)
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/* Catch port connections and disconnections */
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ARDOUR::AudioEngine::instance()->PortConnectedOrDisconnected.connect (port_connection, MISSING_INVALIDATOR, boost::bind (&Push2::connection_handler, this, _1, _2, _3, _4, _5), this);
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/* ports might already be there */
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/* Push 2 ports might already be there */
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port_registration_handler ();
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}
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Push2::~Push2 ()
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{
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stop ();
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selection_connection.disconnect ();
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stop_event_loop (); /* this will call stop_using_device () in Quit request handler */
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device_release ();
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ports_release ();
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if (_current_layout) {
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_canvas->root()->remove (_current_layout);
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_current_layout = 0;
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}
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delete track_mix_layout;
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delete mix_layout;
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mix_layout = 0;
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delete scale_layout;
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scale_layout = 0;
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delete splash_layout;
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splash_layout = 0;
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}
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void
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Push2::port_registration_handler ()
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Push2::run_event_loop ()
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{
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if (!_async_in && !_async_out) {
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/* ports not registered yet */
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return;
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DEBUG_TRACE (DEBUG::Push2, "start event loop\n");
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BaseUI::run ();
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}
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if (_async_in->connected() && _async_out->connected()) {
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/* don't waste cycles here */
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return;
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}
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string input_port_name = X_("Ableton Push 2 MIDI 1 in");
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string output_port_name = X_("Ableton Push 2 MIDI 1 out");
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vector<string> in;
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vector<string> out;
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AudioEngine::instance()->get_ports (string_compose (".*%1", input_port_name), DataType::MIDI, PortFlags (IsPhysical|IsOutput), in);
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AudioEngine::instance()->get_ports (string_compose (".*%1", output_port_name), DataType::MIDI, PortFlags (IsPhysical|IsInput), out);
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if (!in.empty() && !out.empty()) {
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cerr << "Push2: both ports found\n";
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cerr << "\tconnecting to " << in.front() << " + " << out.front() << endl;
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if (!_async_in->connected()) {
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AudioEngine::instance()->connect (_async_in->name(), in.front());
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}
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if (!_async_out->connected()) {
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AudioEngine::instance()->connect (_async_out->name(), out.front());
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}
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}
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void
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Push2::stop_event_loop ()
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{
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DEBUG_TRACE (DEBUG::Push2, "stop event loop\n");
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BaseUI::quit ();
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}
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int
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Push2::open ()
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Push2::begin_using_device ()
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{
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int err;
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DEBUG_TRACE (DEBUG::Push2, "begin using device\n");
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/* set up periodic task used to push a frame buffer to the
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* device (25fps). The device can handle 60fps, but we don't
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* need that frame rate.
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*/
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Glib::RefPtr<Glib::TimeoutSource> vblank_timeout = Glib::TimeoutSource::create (40); // milliseconds
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vblank_connection = vblank_timeout->connect (sigc::mem_fun (*this, &Push2::vblank));
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vblank_timeout->attach (main_loop()->get_context());
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connect_session_signals ();
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init_buttons (true);
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init_touch_strip ();
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set_pad_scale (_scale_root, _root_octave, _mode, _in_key);
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splash ();
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/* catch current selection, if any so that we can wire up the pads if appropriate */
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{
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StripableNotificationListPtr sp (new StripableNotificationList (ControlProtocol::last_selected()));
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stripable_selection_change (sp);
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}
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request_pressure_mode ();
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in_use = true;
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if (handle) {
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/* already open */
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return 0;
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}
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if ((handle = libusb_open_device_with_vid_pid (NULL, ABLETON, PUSH2)) == 0) {
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return -1;
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int
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Push2::stop_using_device ()
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{
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DEBUG_TRACE (DEBUG::Push2, "stop using device\n");
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if (!in_use) {
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DEBUG_TRACE (DEBUG::Push2, "nothing to do, device not in use\n");
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return 0;
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}
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if ((err = libusb_claim_interface (handle, 0x00))) {
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return -1;
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init_buttons (false);
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strip_buttons_off ();
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vblank_connection.disconnect ();
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session_connections.drop_connections ();
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in_use = false;
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return 0;
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}
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try {
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_canvas = new Push2Canvas (*this, 960, 160);
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mix_layout = new MixLayout (*this, *session, "globalmix");
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scale_layout = new ScaleLayout (*this, *session, "scale");
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track_mix_layout = new TrackMixLayout (*this, *session, "trackmix");
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splash_layout = new SplashLayout (*this, *session, "splash");
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} catch (...) {
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error << _("Cannot construct Canvas for display") << endmsg;
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libusb_release_interface (handle, 0x00);
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libusb_close (handle);
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handle = 0;
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return -1;
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}
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int
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Push2::ports_acquire ()
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{
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DEBUG_TRACE (DEBUG::Push2, "acquiring ports\n");
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/* setup ports */
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@ -203,12 +231,13 @@ Push2::open ()
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_async_out = AudioEngine::instance()->register_output_port (DataType::MIDI, X_("Push 2 out"), true);
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if (_async_in == 0 || _async_out == 0) {
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DEBUG_TRACE (DEBUG::Push2, "cannot register ports\n");
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return -1;
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}
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/* We do not add our ports to the input/output bundles because we don't
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* want users wiring them by hand. They could use JACK tools if they
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* really insist on that.
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* really insist on that (and use JACK)
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*/
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_input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_async_in).get();
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@ -237,26 +266,21 @@ Push2::open ()
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connect_to_parser ();
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/* Connect input port to event loop */
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AsyncMIDIPort* asp;
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asp = dynamic_cast<AsyncMIDIPort*> (_input_port);
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asp->xthread().set_receive_handler (sigc::bind (sigc::mem_fun (this, &Push2::midi_input_handler), _input_port));
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asp->xthread().attach (main_loop()->get_context());
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return 0;
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}
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list<boost::shared_ptr<ARDOUR::Bundle> >
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Push2::bundles ()
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void
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Push2::ports_release ()
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{
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list<boost::shared_ptr<ARDOUR::Bundle> > b;
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if (_output_bundle) {
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b.push_back (_output_bundle);
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}
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return b;
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}
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int
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Push2::close ()
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{
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init_buttons (false);
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strip_buttons_off ();
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DEBUG_TRACE (DEBUG::Push2, "releasing ports\n");
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/* wait for button data to be flushed */
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AsyncMIDIPort* asp;
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@ -270,29 +294,57 @@ Push2::close ()
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_async_out.reset ((ARDOUR::Port*) 0);
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_input_port = 0;
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_output_port = 0;
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periodic_connection.disconnect ();
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session_connections.drop_connections ();
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if (_current_layout) {
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_canvas->root()->remove (_current_layout);
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_current_layout = 0;
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}
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delete mix_layout;
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mix_layout = 0;
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delete scale_layout;
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scale_layout = 0;
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delete splash_layout;
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splash_layout = 0;
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int
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Push2::device_acquire ()
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{
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int err;
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DEBUG_TRACE (DEBUG::Push2, "acquiring device\n");
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if (handle) {
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DEBUG_TRACE (DEBUG::Push2, "open() called with handle already set\n");
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/* already open */
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return 0;
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}
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if ((handle = libusb_open_device_with_vid_pid (NULL, ABLETON, PUSH2)) == 0) {
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DEBUG_TRACE (DEBUG::Push2, "failed to open USB handle\n");
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return -1;
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}
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if ((err = libusb_claim_interface (handle, 0x00))) {
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DEBUG_TRACE (DEBUG::Push2, "failed to claim USB device\n");
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libusb_close (handle);
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handle = 0;
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return -1;
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}
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return 0;
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}
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void
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Push2::device_release ()
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{
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DEBUG_TRACE (DEBUG::Push2, "releasing device\n");
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if (handle) {
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libusb_release_interface (handle, 0x00);
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libusb_close (handle);
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handle = 0;
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}
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}
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return 0;
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list<boost::shared_ptr<ARDOUR::Bundle> >
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Push2::bundles ()
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{
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list<boost::shared_ptr<ARDOUR::Bundle> > b;
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if (_output_bundle) {
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b.push_back (_output_bundle);
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}
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return b;
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}
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void
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@ -366,16 +418,6 @@ Push2::init_buttons (bool startup)
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bool
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Push2::probe ()
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{
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libusb_device_handle *h;
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libusb_init (NULL);
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if ((h = libusb_open_device_with_vid_pid (NULL, ABLETON, PUSH2)) == 0) {
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DEBUG_TRACE (DEBUG::Push2, "no Push2 device found\n");
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return false;
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}
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libusb_close (h);
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DEBUG_TRACE (DEBUG::Push2, "Push2 device located\n");
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return true;
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}
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@ -399,19 +441,10 @@ Push2::do_request (Push2Request * req)
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} else if (req->type == Quit) {
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stop ();
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stop_using_device ();
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}
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}
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int
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Push2::stop ()
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{
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BaseUI::quit ();
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close ();
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return 0;
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}
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void
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Push2::splash ()
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{
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@ -454,49 +487,20 @@ Push2::set_active (bool yn)
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if (yn) {
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/* start event loop */
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BaseUI::run ();
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if (open ()) {
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DEBUG_TRACE (DEBUG::Push2, "device open failed\n");
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close ();
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if (device_acquire ()) {
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return -1;
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}
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/* Connect input port to event loop */
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AsyncMIDIPort* asp;
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asp = dynamic_cast<AsyncMIDIPort*> (_input_port);
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asp->xthread().set_receive_handler (sigc::bind (sigc::mem_fun (this, &Push2::midi_input_handler), _input_port));
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asp->xthread().attach (main_loop()->get_context());
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connect_session_signals ();
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/* set up periodic task used to push a frame buffer to the
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* device (25fps). The device can handle 60fps, but we don't
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* need that frame rate.
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*/
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Glib::RefPtr<Glib::TimeoutSource> vblank_timeout = Glib::TimeoutSource::create (40); // milliseconds
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vblank_connection = vblank_timeout->connect (sigc::mem_fun (*this, &Push2::vblank));
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vblank_timeout->attach (main_loop()->get_context());
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Glib::RefPtr<Glib::TimeoutSource> periodic_timeout = Glib::TimeoutSource::create (1000); // milliseconds
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periodic_connection = periodic_timeout->connect (sigc::mem_fun (*this, &Push2::periodic));
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periodic_timeout->attach (main_loop()->get_context());
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init_buttons (true);
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init_touch_strip ();
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set_pad_scale (_scale_root, _root_octave, _mode, _in_key);
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splash ();
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if ((connection_state & (InputConnected|OutputConnected)) == (InputConnected|OutputConnected)) {
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begin_using_device ();
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} else {
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/* begin_using_device () will get called once we're connected */
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}
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} else {
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stop ();
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/* Control Protocol Manager never calls us with false, but
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* insteads destroys us.
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*/
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}
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ControlProtocol::set_active (yn);
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@ -537,24 +541,20 @@ Push2::midi_input_handler (IOCondition ioc, MIDI::Port* port)
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if (ioc & IO_IN) {
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// DEBUG_TRACE (DEBUG::Push2, string_compose ("something happend on %1\n", port->name()));
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DEBUG_TRACE (DEBUG::Push2, string_compose ("something happend on %1\n", port->name()));
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AsyncMIDIPort* asp = dynamic_cast<AsyncMIDIPort*>(port);
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if (asp) {
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asp->clear ();
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}
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//DEBUG_TRACE (DEBUG::Push2, string_compose ("data available on %1\n", port->name()));
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DEBUG_TRACE (DEBUG::Push2, string_compose ("data available on %1\n", port->name()));
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if (in_use) {
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framepos_t now = AudioEngine::instance()->sample_time();
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port->parse (now);
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}
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return true;
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}
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bool
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Push2::periodic ()
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{
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return true;
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}
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@ -1166,6 +1166,47 @@ Push2::pad_filter (MidiBuffer& in, MidiBuffer& out) const
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return matched;
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}
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void
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Push2::port_registration_handler ()
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{
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if (!_async_in && !_async_out) {
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/* ports not registered yet */
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return;
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}
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if (_async_in->connected() && _async_out->connected()) {
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/* don't waste cycles here */
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return;
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}
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#ifdef __APPLE__
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/* the origin of the numeric magic identifiers is known only to Ableton
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and may change in time. This is part of how CoreMIDI works.
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*/
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string input_port_name = X_("system:midi_capture_1319078870");
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string output_port_name = X_("system:midi_playback_3409210341");
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#else
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string input_port_name = X_("Ableton Push 2 MIDI 1 in");
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string output_port_name = X_("Ableton Push 2 MIDI 1 out");
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#endif
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vector<string> in;
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vector<string> out;
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AudioEngine::instance()->get_ports (string_compose (".*%1", input_port_name), DataType::MIDI, PortFlags (IsPhysical|IsOutput), in);
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AudioEngine::instance()->get_ports (string_compose (".*%1", output_port_name), DataType::MIDI, PortFlags (IsPhysical|IsInput), out);
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if (!in.empty() && !out.empty()) {
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cerr << "Push2: both ports found\n";
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cerr << "\tconnecting to " << in.front() << " + " << out.front() << endl;
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if (!_async_in->connected()) {
|
||||
AudioEngine::instance()->connect (_async_in->name(), in.front());
|
||||
}
|
||||
if (!_async_out->connected()) {
|
||||
AudioEngine::instance()->connect (_async_out->name(), out.front());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool
|
||||
Push2::connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boost::weak_ptr<ARDOUR::Port>, std::string name2, bool yn)
|
||||
{
|
||||
@ -1190,11 +1231,14 @@ Push2::connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boo
|
||||
connection_state &= ~OutputConnected;
|
||||
}
|
||||
} else {
|
||||
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("Connections between %1 and %2 changed, but I ignored it\n", name1, name2));
|
||||
DEBUG_TRACE (DEBUG::Push2, string_compose ("Connections between %1 and %2 changed, but I ignored it\n", name1, name2));
|
||||
/* not our ports */
|
||||
return false;
|
||||
}
|
||||
|
||||
DEBUG_TRACE (DEBUG::Push2, string_compose ("our ports changed connection state: %1 -> %2 connected ? %3\n",
|
||||
name1, name2, yn));
|
||||
|
||||
if ((connection_state & (InputConnected|OutputConnected)) == (InputConnected|OutputConnected)) {
|
||||
|
||||
/* XXX this is a horrible hack. Without a short sleep here,
|
||||
@ -1203,11 +1247,19 @@ Push2::connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boo
|
||||
*/
|
||||
|
||||
g_usleep (100000);
|
||||
DEBUG_TRACE (DEBUG::FaderPort, "device now connected for both input and output\n");
|
||||
connected ();
|
||||
DEBUG_TRACE (DEBUG::Push2, "device now connected for both input and output\n");
|
||||
|
||||
/* may not have the device open if it was just plugged
|
||||
in. Really need USB device detection rather than MIDI port
|
||||
detection for this to work well.
|
||||
*/
|
||||
|
||||
device_acquire ();
|
||||
begin_using_device ();
|
||||
|
||||
} else {
|
||||
DEBUG_TRACE (DEBUG::FaderPort, "Device disconnected (input or output or both) or not yet fully connected\n");
|
||||
stop_using_device ();
|
||||
}
|
||||
|
||||
ConnectionChange (); /* emit signal for our GUI */
|
||||
@ -1217,12 +1269,6 @@ Push2::connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boo
|
||||
return true; /* connection status changed */
|
||||
}
|
||||
|
||||
void
|
||||
Push2::connected ()
|
||||
{
|
||||
request_pressure_mode ();
|
||||
}
|
||||
|
||||
boost::shared_ptr<Port>
|
||||
Push2::output_port()
|
||||
{
|
||||
|
@ -370,12 +370,19 @@ class Push2 : public ARDOUR::ControlProtocol
|
||||
|
||||
private:
|
||||
libusb_device_handle *handle;
|
||||
bool in_use;
|
||||
ModifierState _modifier_state;
|
||||
|
||||
void do_request (Push2Request*);
|
||||
int stop ();
|
||||
int open ();
|
||||
int close ();
|
||||
|
||||
int begin_using_device ();
|
||||
int stop_using_device ();
|
||||
int device_acquire ();
|
||||
void device_release ();
|
||||
int ports_acquire ();
|
||||
void ports_release ();
|
||||
void run_event_loop ();
|
||||
void stop_event_loop ();
|
||||
|
||||
void relax () {}
|
||||
|
||||
@ -431,9 +438,6 @@ class Push2 : public ARDOUR::ControlProtocol
|
||||
|
||||
bool midi_input_handler (Glib::IOCondition ioc, MIDI::Port* port);
|
||||
|
||||
sigc::connection periodic_connection;
|
||||
bool periodic ();
|
||||
|
||||
void thread_init ();
|
||||
|
||||
PBD::ScopedConnectionList session_connections;
|
||||
|
Loading…
Reference in New Issue
Block a user